StarTech.com Quad M.2 PCIe Adapter Card, PCIe x16 to Quad NVMe or AHCI M.2 SSDs, PCI Express 4.0, 7.8GBps/Drive, Bifurcation Required, Windows/Linux Compatible. Host interface: PCIe, Output interface: M.2, Expansion card standard: PCIe 4.0. Product colour: Red, Mean time between failures (MTBF): 4353192 h. Data transfer rate (max): 7.8 Gbit/s. Width: 290 mm, Depth: 170 mm, Height: 30 mm. Package width: 290 mm, Package depth: 120 mm, Package height: 30 mm